Apple CEO Steve Jobs will deliver the opening keynote address at next month's Macworld Conference and Expo.

The keynote takes place on Wednesday, July 18 at 3pm (BST). He will appear at the Jacob K Javits Convention Center in New York.

Pundits are speculating that Jobs will discuss the work in progress to bring applications to Mac OS X. It is also rumoured that he will announce a revised iMac range, with a 17-inch LCD monitor, ditch the award-winning G4 Cube and possibly announce a G4 PowerBook configuration with a built-in CD-RW drive. Others believe he will introduce revised G4 Power Macs, possibly making more multiprocessing configurations available.

The Macintosh community remains faithful, with increased attendance at Expo year-on-year. Show organizer IDG World Expo has revealed that pre-registration for this year's event has broken previous records.

The number of pre-registered conference attendees is up more than 25 per cent. Overall, attendee registration for Macworld is up 14 per cent 60,000 or more visitors are expected this year.